Datasheet

INA226EVM Documentation

www.ti.com

5.3.5 Auto-Write and the Supply Voltage

The INA226EVM software allows users to customize the board level voltage, regulated by the

SM-USB-DIG. By selecting either 3.3 V or 5 V, the user can designate which voltage the device should

operate at.

The software also includes an Auto-Write feature as shown in Figure 26, which is enabled by default. This

feature automatically updates the register table whenever a change is made. When this feature is

enabled, the Write All Registers button serves little purpose and is only used as an alternative to when

AutWrite is disabled.

Figure 26. Auto-Write, Power Button, and Voltage Control

6 INA226EVM Documentation

This section contains the complete bill of materials, schematic diagram, and PCB layout for the

INA226EVM.

NOTE: The board layout is not to scale. This image is intended to show how the board is laid out; it

is not intended to be used for manufacturing INA226EVM PCBs.

INA226EVM Evaluation Board and Software Tutorial SBOU113– June 2011

Submit Documentation Feedback